Online Training - PLC (Programmable Logic Controller)

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PENDAHULUAN A programmable logic controller is an industrial computer that has been ruggedized and adapted for the control of manufacturing processes, such as assembly lines, machines, robotic devices, or any activity that requires high reliability, ease of programming, and process fault diagnosis. Fundamentally, a PLC's job is to control a system's functions using the internal logic programmed into it. This training will learn about PLC , that has been designed for system solutions in the fields of manufacturing and process automation. This process controller is ideal for data-intensive tasks that are especially typical for the process industry. MATERI 1. How Exactly Does a PLC Work?

The Led on the output card means i am getting voltage out right? does it?
What exactly happens in between? there’s more than just a program in the CPU
How exactly does it scan the program?
What is this Watchdog Timer? Is it that important?
Can I use the same output twice? That’s bad programming isn’t it?
A PLC is a logic controller, so use a logical approach to fault find it
What are the 8 simple test points to check?
The PLC is in RUN, that means there’s a program right? does it?
FORCING a bit and toggling a bit is pretty much the same yeah? depends on which PLC

2. How Do I Do The Following?

How do I check power is ON and PLC is in right mode (RUN or Program)
Check for a fault condition (is SF LED ON)
Establish a link to the PLC (accessible nodes)
If comms problem check PG/PC interface
Create a blank project and take a backup
Open project for PLC and go On Line
Interrogate Diagnostics Buffer
Identify if it is a hardware or software fault?
Change the battery
Change modules if necessary (with spares and without spares)
Identify if it is a PLC or comms fault (Profibus or MPI)
Check all settings against a template, Node Address etc
Check Hardware Configuration
Clear Memory and Download program
Check software against latest copy (Compare function)
Monitor program
Searching for specific operands and instructions
Changing timer, counter values On Line
Making minor mods Off Line and On Line
Check or create a VAT table to establish parameter status
Force a parameter if required
Call up reference data to assist with software diagnostics
Archive and Retrieve project
Display Documentation (Symbols, Comments)
Reassign an I/O address and change software addresses (Rewire Function)
Printing Cross Reference/Program Listings etc

3. Background Information Also Covered 4. Understanding of The Following

Number formats, bits, bytes, words, double words
Binary, HEX, octal, floating point, integer
Data types and parameter types, Bool etc
Block types
Variable types (local and global)
How to monitor various blocks
Ladder, STL programs
Basic Instructions, contacts, set, reset etc
Timers, Counters
Comparators, Maths
How to make minor mods
Altering values in a VAT table
Back tracking through a program to establish where power flow stops
Overall reset procedure
Fault finding tips

5. Course Equipment Per Delegate

S7 400 PLC
PC or Laptop
Simulator

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